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J Chem Ecol


Title:"(Z)-Pentacos-12-ene, an oviposition-deterring pheromone of Cheilomenes sexmaculata"
Author(s):Klewer N; Ruzicka Z; Schulz S;
Address:"Institut fur Organische Chemie, Technische Universitat Braunschweig, Hagenring, 30, 38106, Braunschweig, Germany"
Journal Title:J Chem Ecol
Year:2007
Volume:20071017
Issue:11
Page Number:2167 - 2170
DOI: 10.1007/s10886-007-9372-4
ISSN/ISBN:0098-0331 (Print) 0098-0331 (Linking)
Abstract:"Larvae of the coccinellid beetle Cheilomenes sexmaculata (F.) produce an oviposition-deterring pheromone that inhibits egg laying of conspecific females on oviposition sites walked over by first-instar larvae. By use of bioassay-guided fractionation of larval extracts, (Z)-pentacos-12-ene was identified as an active component of the cuticular hydrocarbons of the larvae. Other compounds that occur in the active fractions, such as the alkaloid coccinelline and saturated hydrocarbons, were individually tested but proved to be inactive. The synthesis of (Z)-pentacos-12-ene is reported"
Keywords:Alkenes/chemistry/*pharmacology Animals Coleoptera/*drug effects/*physiology Larva/physiology Molecular Structure Oviposition/*drug effects/physiology Pheromones/chemistry/*pharmacology;
Notes:"MedlineKlewer, Nico Ruzicka, Zdenek Schulz, Stefan eng 2007/10/18 J Chem Ecol. 2007 Nov; 33(11):2167-70. doi: 10.1007/s10886-007-9372-4. Epub 2007 Oct 17"

 
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